Synonyms and related words :
airtight, close, compact, dustproof, dusttight, fast, firm, gasproof, gastight, hermetic, hermetically sealed, lighttight, oilproof, oiltight, rainproof, raintight, sealed, shut fast, smokeproof, smoketight, snug, staunch, stormproof, stormtight, tight, water-repellant, waterproof, watertight, windproof, windtight